DUPONT, Wash. — The Washington State Department of Transportation says a jack-knifed semi-truck has blocked the left two lanes of southbound I-5.
It’s happening in DuPont near Joint Base Lewis-McChord (JBLM).
The backups extend beyond Thorne Lane, and WSDOT says to expect heavy congestion throughout the morning.
As of 7:45 a.m., crews are working to clear the crash.
No word on when the lanes will reopen or whether there are any injuries.
This is a developing story and will be updated when more information becomes available.
Collision involving a jack-knifed semi-truck has 2 left lanes of southbound I-5 blocked in DuPont/JBLM. Backups extend beyond Thorne Lane. pic.twitter.com/dD1MALyW1y
— WSDOT Tacoma (@wsdot_tacoma) August 20, 2025
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